Wire is an encrypted messaging app, available for many different platforms. It is possible to install on Tails, a secure Linux on an USB Stick.
You will need a Persistent Volume. Check the Tails docs if you need to create one
- Open the "Configure Persistent Volume" application. You find it in the Tails application menu in the Group named "Tails".
- Enable "Dotfiles" at the bottom of the list and Save the changes.